Video DownloadHelper is a add-on for Mozilla Firefox. It helps in downloading videos from YouTube like sites. Now you don’t need to download any software or visit certain websites to download YouTube videos. You can download it very easily with the help of this add-on.
It capture video and image files from websites. While you are surfing the web, it automatically detects the files and an icon gets animated and you can download by just click on the item.
When you are on a YouTube page, you can download the video directly on your filesystem.